package cn.ll.po;

import java.util.Date;
import java.util.List;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

/**
 * A data access object (DAO) providing persistence and search support for Item
 * entities. Transaction control of the save(), update() and delete() operations
 * can directly support Spring container-managed transactions or they can be
 * augmented to handle user-managed Spring transactions. Each of these methods
 * provides additional information for how to configure it for the desired type
 * of transaction control.
 * 
 * @see cn.ll.po.Item
 * @author MyEclipse Persistence Tools
 */

public class ItemDAO extends HibernateDaoSupport {
	private static final Log log = LogFactory.getLog(ItemDAO.class);
	// property constants
	public static final String CONTRACTID = "contractid";
	public static final String TASKID = "taskid";
	public static final String CREATEID = "createid";
	public static final String TYPE = "type";
	public static final String SUBTYPE = "subtype";
	public static final String COST = "cost";
	public static final String COSTTYPE = "costtype";
	public static final String ROOTID = "rootid";
	public static final String AMOUNT = "amount";

	protected void initDao() {
		// do nothing
	}

	public void save(Item transientInstance) {
		log.debug("saving Item instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(Item persistentInstance) {
		log.debug("deleting Item instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public Item findById(java.lang.Integer id) {
		log.debug("getting Item instance with id: " + id);
		try {
			Item instance = (Item) getHibernateTemplate().get("cn.ll.po.Item",
					id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List<Item> findByExample(Item instance) {
		log.debug("finding Item instance by example");
		try {
			List<Item> results = (List<Item>) getHibernateTemplate()
					.findByExample(instance);
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Item instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Item as model where model."
					+ propertyName + "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List<Item> findByContractid(Object contractid) {
		return findByProperty(CONTRACTID, contractid);
	}

	public List<Item> findByTaskid(Object taskid) {
		return findByProperty(TASKID, taskid);
	}

	public List<Item> findByCreateid(Object createid) {
		return findByProperty(CREATEID, createid);
	}

	public List<Item> findByType(Object type) {
		return findByProperty(TYPE, type);
	}

	public List<Item> findBySubtype(Object subtype) {
		return findByProperty(SUBTYPE, subtype);
	}

	public List<Item> findByCost(Object cost) {
		return findByProperty(COST, cost);
	}

	public List<Item> findByCosttype(Object costtype) {
		return findByProperty(COSTTYPE, costtype);
	}

	public List<Item> findByRootid(Object rootid) {
		return findByProperty(ROOTID, rootid);
	}

	public List<Item> findByAmount(Object amount) {
		return findByProperty(AMOUNT, amount);
	}

	public List findAll() {
		log.debug("finding all Item instances");
		try {
			String queryString = "from Item";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public List findFreeItemByContractid(String contractid) {
		log.debug("finding free Item instances");
		try {
			String queryString = "from Item where taskid is null and contractid ='"+contractid + "'";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find free Item failed", re);
			throw re;
		}
	}
	
	public Item merge(Item detachedInstance) {
		log.debug("merging Item instance");
		try {
			Item result = (Item) getHibernateTemplate().merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(Item instance) {
		log.debug("attaching dirty Item instance");
		try {
			getHibernateTemplate().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(Item instance) {
		log.debug("attaching clean Item instance");
		try {
			getHibernateTemplate().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static ItemDAO getFromApplicationContext(ApplicationContext ctx) {
		return (ItemDAO) ctx.getBean("ItemDAO");
	}
}